Presidential elections · 2000–2024
Black Hawk County, IA — Presidential Election Results (2000–2024)
In 2024, Black Hawk County, Iowa voted for Kamala D. Harris (Democratic) by D+1.2 — 31,299 Democratic to 30,572 Republican of 62,906 votes cast. From 2020 to 2024 it shifted 7.6 points toward Republicans. That makes it 14.4 points more Democratic than Iowa overall (R+13.2).
Data: MIT Election Data & Science Lab, Harvard Dataverse.
Margin by election, 2000–2024
Democratic minus Republican, in points of all votes cast — blue bars Democratic, red Republican.
Every election in Black Hawk County
| Year | Democratic | Republican | Other | Dem share | Rep share | Margin |
|---|---|---|---|---|---|---|
| 2024 | 31,299 | 30,572 | 1,035 | 49.8% | 48.6% | D+1.2 |
| 2020 | 35,647 | 29,813 | 1,133 | 53.5% | 44.8% | D+8.8 |
| 2016 | 32,233 | 27,476 | 4,696 | 50.0% | 42.7% | D+7.4 |
| 2012 | 39,821 | 26,235 | 1,085 | 59.3% | 39.1% | D+20.2 |
| 2008 | 39,184 | 24,662 | 929 | 60.5% | 38.1% | D+22.4 |
| 2004 | 35,392 | 28,046 | 469 | 55.4% | 43.9% | D+11.5 |
| 2000 | 30,112 | 23,468 | 1,505 | 54.7% | 42.6% | D+12.1 |
Black Hawk County presidential elections — FAQ
Who carried Black Hawk County in the 2024 presidential election?+
Kamala D. Harris (Democratic) carried Black Hawk County, Iowa in 2024 by D+1.2, with 62,906 votes cast. Data: MIT Election Data & Science Lab.
How did Black Hawk County shift between 2020 and 2024?+
Black Hawk County shifted 7.6 points toward Republicans between 2020 (D+8.8) and 2024 (D+1.2).
Is Black Hawk County more Democratic or Republican than Iowa overall?+
In 2024, Black Hawk County went D+1.2 while Iowa overall went R+13.2 — 14.4 points more Democratic than the state.
Where does this election data come from?+
County-level presidential returns (2000–2024) come from the MIT Election Data and Science Lab (MEDSL), published on the Harvard Dataverse. pumsdata is an independent product that makes the data easy to map and compare, and is not affiliated with MEDSL or Harvard.